baber/WOPTO huggingface dataset:
Patent CA-2168676-C (CA)
Inventor: NAKANISHI MAKOTO
IPC: G01R31/40
Filed: 1996-02-02
Granted: 1999-02-02
Abstract: A failure detection system for detecting a failure in a power converter includes: a by-pass switch for switching the electric power supply so that electric power is supplied from a standby power source to a load instead of from a power converter; a switch operation circuit for turning on and off the by-pass switch; a first current detector for detecting the inverter output current of the power converter, a second current detector for detecting the load current flowing through the load; an operational amplifier for adding the outputs of the first and second current detectors; and a comparator for detecting a failure of the by-pass switch, wherein if the addition result given by the operational amplifier is less than a predetermined value when the switch operation circuit is turned off, the comparator concludes that the by-pass switch has a failure.   In this failure detection system, it is possible to detect a failure of the by-pass switch used to transfer the electric power to the load from the standby power source in stead of from the power converter, without having to detect the current flowing through the by-pass switch. Thus it is possible to reduce the size and the cost of the system.
Patent CA-2170037-C (CA)
Title: Dehydration of hydrogels
Inventor: BAO QI-BIN
IPC: A61F2/00
Filed: 1994-07-18
Granted: 2000-05-30
Abstract: Novel prosthetic nuclear implants for insertion into vertebral discs are prepared by dehydrating hydrated bulky hydrogel discs under specific conditions so as to reduce the water content as low as possible (down to about 10 % by weight) but without distortion of the implants, without the formation of concavities and sharp edges, and without changing the shape of the hydrated implant.
Patent CA-2172650-C (CA)
Title: Adjustment of call bandwidth during a communication call
Inventor: BALES BRUCE MERRILL
IPC: H04M3/00
Filed: 1996-03-26
Granted: 1999-09-28
Abstract: Providing capability for increasing, decreasing, or changing types of bandwidth associated with a telecommunication call during the call and through out the call path. New messages can allocate or deallocate bandwidth associated withthe call at each intervening switching node through out the call path. All switching nodes of a switching system involved with the resulting call consider the call as a single call. The new messages allow adding video capability to a voice call and, at a still later point in time, removing the video capability from the call. The result is convenience to telecommunication users in that the user is able to utilize any type or amount of bandwidth during a multimedia call. Yet, at any given point in time, the user pays only for the bandwidth that is being utilized.
Patent CA-2173839-C (CA)
Title: Transferrin compositions to alleviate the side effects of cytotoxic drugs
Inventor: PIERPAOLI WALTER
IPC: A61K31/192
Filed: 1995-08-11
Granted: 2009-12-22
Abstract: The invention pertains to a eutrophic drug composition containing transferrins, particularly human transferrin. It allows the toxic effects of cytotoxic drugs when used at high dosages or over prolonged times, e.g., cyclosporin, to be alleviated or even suppressed.
Patent CA-2174239-C (CA)
Title: Photoassisted oxidation of species in solution
Inventor: KHOE GING HAUW
IPC: C02F1/74
Filed: 1994-10-24
Granted: 1999-07-20
Abstract: The invention relates to methods and processes for the photoassisted oxidation of dissolved species such as arsenic, iron, phosphorus and sulphur. Each aspect of the invention involves supplying to a solution including the species to be oxidised, an oxidant and a photoabsorber, and then irradiating the resultant solution with UV/electromagnetic radiation. The resulting oxidised species can then be subsequently treated, used and/or removed (e.g. through precipitation/co-precipitation).
Patent CA-2179635-C (CA)
Title: Infusion catheter with uniform distribution of fluids
Inventor: WANG JAMES C
IPC: A61M25/00
Filed: 1994-12-09
Granted: 2007-05-29
Abstract: This invention is an infusion catheter (10) including an elongated catheter body (12), and an infusion section (18) at its distal en d (16) for delivery of therapeutic fluid to bodily passages. The infusion sect ion (18, 60) includes an outer tube (32) and an inner tu be (38) concentric with the outer tube, each tube having a multiplicity of ports (48 , 50) there through. The inner tube (38) delimits a cent ral, fluid delivery lumen (42). The inner tube (38) is uniformly spaced apart from the outer tube (32) to provide an annular passageway (46), t he radial depth (44) of the passageway being sufficient to permit fluid flow th ere within. Each of the ports (50) through the outer tub e (32) provides fluid between the annular passageway (46) and the exterior of the c atheter, while each of the ports (48) through the inner tube (38) provides fluid between the central lumen (42) and the an nular passageway (46). Thus, therapeutic fluid can flow (52) from the central lumen through the annular passageway to the c atheter exterior.
Patent CA-2182622-C (CA)
Title: Method and apparatus for digital processing in a global positioning system receiver
Inventor: LITTON JAMES DANIEL
IPC: G01S1/00
Filed: 1995-02-28
Granted: 1998-07-07
Abstract: A Global Positioning System (GPS) commercial receiver including a digital proces sor disposed to utilize the energy of both the L1 and L2 GPS satellite signals in order to derive an estimate of an unknown security c ode used to modulate the signals. In processing the signal energy from the received L1 and L2 signals in accordance with statistical Maximu m A Posteriori (MAP) estimation theory, the received L1 signal is correlated with a locally generated replica of the P code, and passed through a bandpass filter having a bandwidth approximating the bandwidth of the unknown modulation code. The received L2 signal is similarl y correlated and filtered, and the decorrelated signals are then latched in such a way as to account for the differential ionospheric re fraction of the L1 and L2 signals. The bandlimited L2 signal is used to produce quadrature error signals related to phase difference between the L2 signal and a locally generated L2 replica. The error signals are integrated over an integration period which approximates the bit per iod of the unknown code, with the resulting estimates of the bits of the unknown code being combined with corresponding L1 channel code b it estimates weighted by a factor proportional to the difference in received L1 and L2 signal power. The hyperbolic tangent of each co mbined W-code bit estimate is then computed, with the result being multiplied by one of the integrated error signals. The resulting co ntrol voltage is then used to adjust the locally generated L2 carrier phase.
Patent CA-2188917-C (CA)
Title: Automatic transmission cooler flushing device
Inventor: AMUNDSEN THOMAS L
IPC: F02B77/04
Filed: 1995-06-07
Granted: 2001-02-13
Abstract: This invention concerns a hand-held portable transmission cooler (50) comprising a high pressure liquid spray gun (10) and a hose (48) connected to the liquid spray gun (10). The liquid spray gun (10) comprises an air inlet plug fitting attachment (12), a handle (18), an air valve (20), a trigger (26) connected about the handle (18), the trigger (26) being positioned in such a way that when pulled, it then pushes an air valve button (24). The spray gun also includes a lid structure (28), covering a canister (40) which holds a cleaning solvent (42), the lid structure (28) having a high pressure air passageway (34) and a high pressure liquid passageway (36), a pressure tube (44) attached to the high pressure liquid passageway (36) and extending downwardly into the canister (40) for transportation of the cleaning solvent (42) and a nozzle (46), the nozzle (46) being attached to the exit of the high pressure liquid passageway (36). One end of the passageway is attached to an opening of a transmission cooler (50) and when the liquid spray gun (10) is attached to an air pressure system, the cleaning solvent (42) can be passed from the liquid spray gun (10) into and through the transmission cooler (50) to thereby clean the same.
Patent CA-2190902-C (CA)
Inventor: NEILL ALLASTAIR
IPC: B01D53/053
Filed: 1996-11-21
Granted: 2000-09-05
Abstract: A pressure swing process for air separation to produce concentrated gaseous oxygen at an elevated pressure without the requirement of further compression of the gaseous oxygen product. The process comprises the steps of compressing the feed air to a pressure in the range of approximately 45 psig to 105 psig, preheating the feed air to each of the adsorption beds to a temperature in the range of approximately 100°F to 200°F, then directing flow of the feed air cyclically into and through at least two crystalline zeolite molecular sieve adsorption beds for selectively adsorbing at least nitrogen therein. In this manner, oxygen having a purity of approximately 88% to 93% at a recovery of approximately 30% to 45% and a bed size factor in the range of 2,500 pounds to 4,000 pounds of absorbent per ton per day of oxygen can be delivered to a receptor tank at an elevated pressure of approximately 40 psig to 100 psig.
Patent CA-2191163-C (CA)
Inventor: GOULD GARY MICHAEL
IPC: H02K9/22
Filed: 1996-11-25
Granted: 2001-07-03
Abstract: Stator bars and stator coils (winding elements) for a large dynamoelectric machine which are to be permanently placed in the slots of the magnetic core of the machine are wrapped so as to be surrounded on three sides with an elongated sheet of an elastomeric substance. A stretching device is attached to the two overlapping edges of the elastomeric sheet in such a manner as to be able to stretch the sheet around the winding element and thus reduce the thickness of the elastomer. The winding element surrounded by the stretched layer of the elastomeric substance is placed in a selected stator slot and the stretching device is detached from the elastomeric material. The elastomeric material attempts to regain its former thickness but is confined to the remaining space between the winding element and the sides of the slot. The offal is trimmed from the elastomeric substance and the winding element remains lodged in the slot.
Patent CA-2196634-C (CA)
Inventor: WU PETER T
IPC: G01V3/30
Filed: 1997-02-03
Granted: 2002-06-04
Abstract: A well logging method and apparatus are disclosed for determining borehole corrected formation resistivity, borehole diameter, and borehole fluid (mud) resistivity with improved accuracy.  A logging device in the borehole transmits electromagnetic energy from a transmitter, which energy is received at receivers on the logging device.  The phase and amplitude of the received energy are measured at the receivers and a phase shift, phase average, and attenuation are associated with the transmitter-to-receivers spacing.  The process is then repeated for a plurality of further transmitters having different spacings from the receivers.  A formation and borehole model having model values of borehole corrected formation resistivity, borehole diameter, and borehole fluid resistivity is generated.          Values of borehole corrected formation resistivity, borehole diameter, and borehole fluid resistivity that would produce a model phase shift, phase average and attenuation corresponding to the measured values of these parameters are then determined.
Patent CA-2197481-C (CA)
Inventor: WOOD ROBERT DUSTAN
IPC: A23F5/24
Filed: 1997-02-12
Granted: 2003-05-20
Abstract: Process  for  the  preparation  of  a  fermented drink in which an aqueous extract is prepared from 0.5-2% tea or coffee, the aqueous extract, to which sugar is added,  is recovered and a fermentation is carried out  in one or more  stages with at  least  one yeast strain  and  at least  one  bacterial  strain,   the insolubles are separated from the fermented drink and then it is heat-treated.        The  invention  also  relates  to  the  fermented drink obtained using the process.
Patent CA-2207185-C (CA)
Inventor: NISHI TAKAO
IPC: A61K31/47
Filed: 1996-10-04
Granted: 2008-08-19
Abstract: La présente invention concerne un dérivé de carbostyryle de formule (1), dans laquelle A est un alkylène inférieur, R est H, halogène ou un alcoxy inférieur, R<1> et R<2> sont chacun un alkyle inférieur, éventuellement substitué par OH, un alcoxy inférieur, un phényle-alcoxy inférieur ou un alcanoyloxy inférieur; le cycloalkyle est facultativement substitué par OH, un hydroxy-alcoxy inférieur ou un alcanoyloxy inférieur; ou l'amino est facultativement substitué par un alkyle inférieur ou un cycloalkyle; R<3> est H, un alkyle inférieur, un alkényle inférieur ou un hydroxy-alkyle inférieur, et la liaison entre les positions 3 et 4 du noyau de carbostyryle est simple ou double, à condition que, quand R et R<3> sont H, R<1> et R<2> ne soient pas soit un alkyle inférieur non substitué, soit un cycloalkyle non substitué ou un sel d'un de ces composés. Le dérivé selon l'invention manifeste des propriétés antithrombotiques, inhibitrices de l'épaississement de l'intima, de dissociation des amas de plaquettes et d'accroissement du débit sanguin dans le cerveau et dans les vaisseaux périphériques. Par conséquent, il est utile comme médicament dans la prophylaxie ou le traitement de diverses affections ischémiques.
Patent CA-2208614-C (CA)
Inventor: TERRUZZI OTTAVIO
IPC: A45D40/06
Filed: 1997-06-23
Granted: 2005-10-11
Abstract: A container with a retractable lid for lipstick, lip cream and/or deodorant comprising an outer casing in two parts (12, 13) which contains at least one cylindrical element (15) and a cylindrical sleeve (16) insertable coaxially into the cylindrical element such that the two can be rotated one relative to the other during use and, for a product stick (29), a cup (28) provided with elements (27) for engagement in a track (22) formed in the cylindrical element (15) and in longitudinal recesses (26) in the cylindrical sleeve (16), in which the two carts (12, 13) of the container (11) can be secured by respective engagement means (17, 18, 20, 21, 24; 25, 33) to the cylindrical element {15) and cylindrical sleeve (16), this latter (16) being provided with a slide surface (25, 35) for a covering and closure vane (31) for an aperture provided in the upper part (13), the vane (31) being provided with an element (34) for engagement in a second track (23) provided in the outer surface of the cylindrical element (15).
Patent CA-2212558-C (CA)
Inventor: GRODSINSKY CARLOS M
IPC: G01T1/20
Filed: 1997-08-05
Granted: 2000-10-10
Abstract: A well logging instrument and method that remove vibration induced noise from the output of a detector including a scintillation crystal.  The invention is based on a realization that pulses induced by vibration during MWD operations are characteristically periodic, whereas pulses generated down hole by gamma rays occur at random intervals and are characteristically non-periodic.  The instrument and method involve positioning a scintillation crystal package in the high vibration environment for interaction with incident radiation, using a light sensing device to convert photons received from the scintillation crystal package into an electrical signal which over time is composed of radiation induced events that are non-periodic and vibration induced events that are periodic, distinguishing the periodic events using a time history of the electrical signal, and removing the periodic events from the electrical signal to provide a corrected electrical signal from which vibration induced components have been removed.  Also disclosed is a method for using the information gathered for vibration induced events to give an indication of the remaining lifetime of the scintillation crystal.
Patent CA-2213496-C (CA)
Title: Method and apparatus for manufacturing objects having optimized response characteristics
Inventor: ST VILLE JAMES A
IPC: B62K19/00
Filed: 1996-02-14
Granted: 2008-04-22
Abstract: A method for manufacturing an object having a potential {x} generated in response to a field {f} applied thereto is provided. The method includes the step of designing (801) a geometric model of the object. A computerized mathematical model of the object is generated (802) by discretizing the geometric model of the object into a plurality of finite elements and defining nodes at boundaries of the elements, wherein values of the field {f} and potential {x} are specified at the nodes. A material property matrix [k] is then calculated base on the relationship {f} = [k] {x}. Material property coefficients are then extracted from the material property matrix [k] for each finite element in the computerized mathematical model and the extracted material property coefficients are compared (804) to material property coefficients for known materials to match the extracted material property coefficients to the material property coefficients for known materials. Manufacturing parameters corresponding to the matched material property coefficients are then determined (805).
Patent CA-2214579-C (CA)
Title: Subtilisin dy variants having decreased adsorption and increased hydrolysis
Inventor: BARNETT BOBBY LEE
IPC: A61K8/00
Filed: 1996-03-06
Granted: 2001-10-30
Abstract: The present invention relates to Subtilisin DY variants having a modified amino acid sequence of wild-type Subtilisin DY amino acid sequence, the wild - type amino acid sequence comprising a first loop region, a second loop regio n, a third loop region, a fourth loop region, a fifth loop region and a sixth loop region; wherein the modified amino acid sequence comprises different amino acids than that occurring in wild-type Subtilisin DY (i.e., substitution) at specifically identified positions in one or more of the loo p regions whereby the Subtilisin DY variant has decreased adsorption to, and increased hydrolysis of, an insoluble substrate as compared to the wild-type  Subtilisin DY. The present invention also relates to DNA sequences encoding such Subtilisin DY variants. The present invention also relates to compositions comprising such Subtilisin DY variants for cleaning a variety o f surfaces.
Patent CA-2214624-C (CA)
Inventor: HAEIWA KAZUHISA
IPC: H01P5/16
Filed: 1997-09-05
Granted: 2000-10-31
Abstract: Since output voltage e of coupler CU2 is displaced in phase by -135 degrees from input signals c and d (by -270 degrees from signals a and b), a carrier which makes signal f is phase shifted by -270 degrees by phase shifter ~1 so that signal f may have the same phase as signal e. Signal f and signal e are power composed by first 3 dB coupler M1, and are further phase shift controlled by variable phase shifters PH11 and PH12 so that they may have the same phase.      Further, an output signal of variable phase shifter PH11 is phase shifted by -90 degrees by phase shifter SH1 so that it has a phase difference by 90 degrees from an output signal of variable phase shifter PH2, and the two signals controlled in this manner are inputted to 3 dB coupler M2. Consequently, two signals e and f inputted to the amplifier are all outputted as output voltage EOUT. According to the present invention of a television broadcasting machine, since a carrier is phase modulated and amplitude modulated with amplitude information and phase information obtained from an input video signal, a vestigial side band signal is outputted to form a television signal without using vestigial side band.
Patent CA-2220417-C (CA)
Inventor: ANZAI MAKOTO
IPC: H03L7/087
Filed: 1997-11-03
Granted: 2001-02-20
Abstract: Level-holding circuits 16, 17 sample and hold the output of quadrature detecting circuit 11 at adjoining apertures of eye patterns of demodulated multi-level QAM signal components and at the middle point of the adjoining apertures, respectively. Thus, location information on a phase plane of demodulated signal such as (I0, Q0), (I1, Q1), and (I1/2, Q1/2) are obtained.  Frequency deviation detecting circuit 18 calculates the amplitude and the direction of the frequency deviation of regenerated carrier based on the location information.  The output of frequency deviation detecting circuit 18 is added to phase error signal in synthesizing circuit 20.  The result of addition is applied to VCO 15.
Patent CA-2224590-C (CA)
Inventor: SLINDE ERIK
IPC: A23K1/18
Filed: 1996-06-14
Granted: 2005-02-08
Abstract: La présente invention concerne des aliments pour animaux présentant une meilleure qualité, une meilleure résistance aux souches bactériennes indésirables et une meilleure digestibilité, ainsi qu'un procédé de fabrication d'aliments pour animaux contenant des céréales soumises à un processus de fermentation.
Patent CA-2233086-C (CA)
Title: Method for isolating multi-lateral well completions while maintaining selective drainhole re-entry access
Inventor: GRAHAM STEPHEN A
IPC: E21B47/00
Filed: 1996-09-25
Granted: 2006-03-28
Abstract: In a cased wellbore (10) having one or more cased and cemented drainholes (24) extending therefrom such that the elliptical shaped opening (46) or junction of each drainhole (24) with the primary well (10) is sealed and cut flush with the inside of the primary well casing (18), an inventive method and system is disclosed for. (a) isolating each perforated and/or drainhole completion (108, 126) within the primary wellbore (10), (b) providing flow control means (162, 164) for each completion (108, 126) to permit selective testing, stimulation, production, or abandonment, and (c) facilitating selective re-entry into any cased drainhole (24) for conducting additional drilling, completion, or remedial work.
Patent CA-2233548-C (CA)
Title: Flexible hydrophilic articles, especially sponges, having a residual antimicrobial effect
Inventor: MCCUE KAREN ANN
IPC: A47L13/16
Filed: 1998-03-30
Granted: 2007-06-12
Abstract: Flexible articles especially hydrophilic sponges featuring long-lasting residual antimicrobial benefits, contain a carrier mass having dispersed within an effective amount of an biocidal composition such as a preservative. Process for the production of such flexible hydrophilic articles are also disclosed.
Patent CA-2237678-C (CA)
Title: Secure flexible electronic submission acceptance system
Inventor: MIRLAS LEV
IPC: G06F21/64
Filed: 1998-05-14
Granted: 2003-08-05
Abstract: In an electronic filing system over a computer network, a central server sets the requirements for making submissions. These requirements include a time limit after the expiry of which, submissions will no longer be accepted. A gateway server polls the central server for the submission requirements, and establishes a directory in its own file system to which all potential submitters have write access until expiry of the time limit. On completion of its submission, a submitter generates evidence of the complete submission. The evidence can be in the form of a message digest. The submitter encrypts the evidence using the gateway server's public encryption key and then forwards the encrypted evidence to the gateway server. If the evidence is filed before expiry of the time limit, the gateway server permits the evidence to be written to the directory established for the submission requirements. Once the submitter has successfully filed its evidence, it can forward the complete submission to the gateway server. When the gateway server receives the complete submission, it decrypts the evidence, it may check the submitter's digital signature on the evidence, and it then compares the complete submission with the evidence. If the evidence is a message digest, the gateway server computes a message digest of the complete submission. If the two digests are identical, then it is clear that the submission was completed when the evidence was filed, before expiry of the deadline, and the gateway server can then forward the submission on to the central server.